Wetland park: an important element for sewage recycling in Kaliningrad

Abstract

Kaliningrad is a large industrial city with the population more than 400 thousand people that
has no modem constructions for sewage treatment. Almost I 00 million m3 of sewage is
annually discharged into the Pregolja River and the Vistula Lagoon. City authorities have a
project for constructing a full cycle of waste water treatment plant. However, the offered
development plan and treatment level will not promote decreasing of eutrophication in the
Vistula Lagoon. In this article the opportunity of using water plants for additional cleaning
sewage of Kaliningrad has being considered. For this purpose it is suggested to organize a
wetland park in a territory along the right bank of the Kaliningrad naval channel in an area
with 86.6 knl. The infrastructure for such wetland-park might be used for recreational
purpose too. The proposal is to consider the wetland park as an effective commercial
enterprise occupying certain sector in the economy of the city. The basic requirements to
organize the wetland park area are that: (I) The wetland-park area should be located nearby
the mechanical and biological sewage treatment; (2) Two zones should be created, an
industrial and a recreational zone; (3)
The borders of zones should be separated by natural or artificial elements of landscape, for
example, forestations; (4) Economic and ecological requirements regarding the sewage
management in Kaliningrad city are related to the necessity of meeting the demands of the
Baltic Region, in order to solve the environmental problems of the Baltic Sea.